57 Wings
TTP B1-L3 ATA 57 Beech 90 Series B2-L1 Wings The King Air wing assem b l y consists of the center section and t w o outboard wing panels . The center section and outboard wing assem b lies are of semimonocoque b o x const r uction. Both center section spars are I-beam sections b uilt up from aluminum e xt r uded tee caps, w ebbing and stiffeners. Similar const r uction is used in the outboard wing spars, e xcept a combination of aluminum e xt r usion and fo r med U-channel mem bers comprise the main spar caps, w hile those of the rear spar are composed of fo r med aluminum angles and cap strips. WING P ANELS The wing panel consists of three subst r uctures: the I-beam spa r , the leading edge assem b l y , and the main b o x assem b l y. The wing panel leading edge assem b l y and the main b o x assem b l y are joined to the main spar b y contin u ...